The foam rubber insulation on the bigger (cold one) copper line from the
compressor to the house, has deteriorated from the sun and weather. Would
like to replace it. It's about 2'.
Is there a special requirement for this insulation, or can a hot water line
insulation be used? This is the stuff commonly found at HD or similar. It
does not look quite the same, as what's on there already.
Yes. I'm not sure that exposing a couple of feet of suction line will
affect the efficiency so much, but it's normally insulated. Perhaps to keep
it protected from the elements and reduce oxidation.
I can see that inside the house, the reason to insulate may be mostly to
avoid dripping all over the place. Any heat absorbed by that line (inside
the house) just adds to cooling and does not lower efficiency.
The large line runs from the house to the compressor.
Heat going into the large line doesn't "add to the cooling", it
actually detracts from it. Yes, heat going into the large line
does reduce the efficiency.
You've got a bit to learn. The outdoor foam is designed to be
used outdoors. Indoor pipe wrap isn't the same. That to learn,
Christopher A. Young
You can\'t shout down a troll.
Beg to differ, even if I'm asking a silly quiestion about the foam. Any
heat "going into the pipe" _from inside the house_, is extracted from the
house. In that way, it adds to cooling. It may be cooling your basement
and the living room, which is not what you want. But it's not a total
Agree that heat going into the same pipe on the outside, reduces efficiency.
Even if it's a fraction of a perent.
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